Modern casino slot machines are controlled by computer software, and the winner %s are pre-programmed into the computer software.

Casino slot machine games have RNGs which are ceaselessly generating combinations, even when the slot machine is not being played.

Running in sync with the Random Number Generator of the casino slot machine game is the pay out percent.

The pay out per cent controls how much the one-armed bandit will pay out, for example the pay out percent may be 90%, which means the slot machine game will payout ninety per cent of all the stakes played, … the casino simply gets to keep 10 percent.

This does not imply that for every time you bet ten credits you will receive nine in return – where is the fun … exhilaration in that? Instead, the casino slot machine game will not pay out for a little while, and then suddenly start up a hot streak and you might draw the big grand prize.

The payout percentages most likely will vary between the assorted games and a couple of the very established casinos, for example Golden Online Casino, which provides a payout of up to 95 %!

So, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to a handful of chosen winners. The casino only gets to keep a relatively tiny percentage of all the stakes allocated.

The casino one armed bandit software controls each and every part of the machine, from the flickering lights to the turning of the reels.

When you hit spin on the one-armed bandit, a combination is produced by the RNG which relates to the pictures on the reel.